Error Call to undefined method Joomla CMS Application

[construaprende]

Hi
After upgrade to Joomla 4
When I want to edit a custom html site module, I got this error:

An error has occurred.
0 Call to undefined method Joomla\CMS\Application\AdministratorApplication::isAdmin()

If I activate error reporting, it shows me this:

j4-error-custom-module.png

Call stack
# Function Location
1 () JROOT/plugins/editors-xtd/doclink/doclink.php:19
2 plgButtonDoclink->onDisplay() JROOT/libraries/src/Editor/Editor.php:236
3 Joomla\CMS\Editor\Editor->getButtons() JROOT/libraries/src/Editor/Editor.php:98
4 Joomla\CMS\Editor\Editor->Joomla\CMS\Editor\{closure}() JROOT/libraries/vendor/joomla/event/src/Dispatcher.php:486
5 Joomla\Event\Dispatcher->dispatch() JROOT/plugins/editors/tinymce/src/PluginTraits/XTDButtons.php:50
6 Joomla\Plugin\Editors\TinyMCE\Extension\TinyMCE->tinyButtons() JROOT/plugins/editors/tinymce/src/PluginTraits/DisplayTrait.php:120
7 Joomla\Plugin\Editors\TinyMCE\Extension\TinyMCE->onDisplay() JROOT/libraries/src/Editor/Editor.php:195
8 Joomla\CMS\Editor\Editor->display() JROOT/libraries/src/Form/Field/EditorField.php:251
9 Joomla\CMS\Form\Field\EditorField->getInput() JROOT/libraries/src/Form/FormField.php:471
10 Joomla\CMS\Form\FormField->__get() JROOT/libraries/src/Form/Field/TextareaField.php:94
11 Joomla\CMS\Form\Field\TextareaField->__get() JROOT/libraries/src/Form/Field/EditorField.php:138
12 Joomla\CMS\Form\Field\EditorField->__get() JROOT/libraries/src/Form/Form.php:458
13 Joomla\CMS\Form\Form->getInput() JROOT/administrator/components/com_modules/tmpl/module/edit.php:119
14 include() JROOT/libraries/src/MVC/View/HtmlView.php:415
15 Joomla\CMS\MVC\View\HtmlView->loadTemplate() JROOT/libraries/src/MVC/View/HtmlView.php:203
16 Joomla\CMS\MVC\View\HtmlView->display() JROOT/administrator/components/com_modules/src/View/Module/HtmlView.php:82
17 Joomla\Component\Modules\Administrator\View\Module\HtmlView->display() JROOT/libraries/src/MVC/Controller/BaseController.php:660
18 Joomla\CMS\MVC\Controller\BaseController->display() JROOT/administrator/components/com_modules/src/Controller/DisplayController.php:84
19 Joomla\Component\Modules\Administrator\Controller\DisplayController->display() JROOT/libraries/src/MVC/Controller/BaseController.php:693
20 Joomla\CMS\MVC\Controller\BaseController->execute() JROOT/libraries/src/Dispatcher/ComponentDispatcher.php:143
21 Joomla\CMS\Dispatcher\ComponentDispatcher->dispatch() JROOT/libraries/src/Component/ComponentHelper.php:361
22 Joomla\CMS\Component\ComponentHelper::renderComponent() JROOT/libraries/src/Application/AdministratorApplication.php:143
23 Joomla\CMS\Application\AdministratorApplication->dispatch() JROOT/libraries/src/Application/AdministratorApplication.php:186
24 Joomla\CMS\Application\AdministratorApplication->doExecute() JROOT/libraries/src/Application/CMSApplication.php:293
25 Joomla\CMS\Application\CMSApplication->execute() JROOT/administrator/includes/app.php:61
26 require_once() JROOT/administrator/index.php:32

Any idea how to solve this?

Thank you

[JAVesey]

Hi
After upgrade to Joomla 4
When I want to edit a custom html site module, I got this error:

An error has occurred.
0 Call to undefined method Joomla\CMS\Application\AdministratorApplication::isAdmin()

You have an extension which is incompatible with J4 (and later).

I’d suggest (without too much knowledge, it has to be said!) that it might be one that installs a button or similar to your editor (TinyMCE).

Try disabling extensions/plugins that do this until you find the right one then update it (or uninstall it).

[ceford]

The editors-xtd/doclink plugin is not a Joomla 4 core plugin and it is not compatible with Joomla 4. Disable it.

[construaprende]

Thank you

I had all editors disabled, and did not worked, until I reinstalled de JCE Editor, and problem solved

Thank you for your advise